Transcript Extended Diversion Time Operations (EDTO)

Extended Diversion Time
Operations (EDTO)
Status Report
Extended Diversion Time
Operations…Definition
“Any flight by an aeroplane where the flight time at
the one engine inoperative cruise speed (in ISA
and still air conditions), from a point on the route
to an adequate alternate aerodrome, is greater
than the threshold time approved by the State of
the Operator or any flight operated in an area
designated by the State of the Operator as an
area of extended diversion time applicability”
Extended Diversion Time
Operations (EDTO)
• Not the same as “long range operation” or
“ultra-long range operation”
• Proposed for two, three and four engine
aeroplanes
• Would place additional requirements on
three and four engine aeroplanes involved
in EDTO such as cargo compartment fire
suppression and maintenance
requirements
Issue and Terminology
• The problem is the length of the diversion,
not the length of the flight in the event of a
primary system or propulsion system failure
• ETOPS and LROPS do not describe the
nature of the operation
• Extended Diversion Time Operations is
considered more descriptive of the issue at
hand
History
• EDTO provisions first proposed by Operations
Technical Panel (OPSP/6) in 2003
• Reviewed by ANC
• Proposal sent back to OPSP
• OPSP/7 refined the maintenance provisions for
aeroplanes with more than 2 engines on EDTO
• Preliminary review by ANC and sent to States for
comments in September 2007
Consultation with States and
International Organizations
• States had fundamental difficulties with
many provisions
• Probable cause: proposal derived from
existing ETOPS provisions extended to
aeroplanes with more than 2 engines
• A new approach to Extended Diversion
Times Operations for all aeroplanes, with
any number of engines, is needed
The Way Forward for a
New EDTO Concept
•
New group formed by ICAO: Special
Operations Task Force Identify the safety
issues
 SOTF Membership: Stakeholders involved
in such operations: ~5 States, operators as
advisors, IATA, IFALPA, EASA, ICCAIA,
OPSP & Airworthiness Panel members
 Start with a clean sheet of paper, but
consider the work done and comments from
States
Timeline
• Meet in the fall 2008
• Complete provisions in 2009
• Applicable in 2010 at the earliest
Thank You